This and change out your engine mounts. I had the same problem on my Expedition. It was unsurprisingly easier to get under that car and see what was up. Also clean your MAF, idle control valve, and intake air temp sensor with some MAF cleaner. Should smooth out your rough idle.
Originally Posted by Kubica
I bet it's either the exhaust bracket at the flange to the headers, or an exhaust hanger.
Do get a friend to inspect it while holding the brakes. A toddler should work nicely.
Last edited by SamDoe1; 01-11-2013 at 10:49 AM.